<!--
 * 文件描述:
 * @author LZ on 2020/7/12
 -->
<template>
  <div>
    <p>我是子组件我下面是孙组件</p>
    <grandSon></grandSon>
  </div>
</template>

<script>
  import grandSon from './grand-son'


  export default {
    components: {grandSon},
    data() {
      return {
      }
    },
    mounted() {
      this.$bus.$emit('SonByDauChange','I am grandSonByDau')
    },
    methods: {},
  }
</script>

<style scoped lang="scss">

</style>
